User`s manual

http://www.adtechcn.com 28
Two-phase pulse input mode
Count upward Count downward
Up/down pulse input mode
) Interpolation
The controller can perform the linear interpolation for any 2-4 axes.
During the interpolation process, the interpolation computation is carried out under the pulse’s basic time order of
the designated axis X. Therefore, such parameters as the designated axis X’s start velocity and drive velocity
should be set before the interpolation command is executed.
Linear interpolation for 2-4 axes
After the end-point coordinates relative to the current position are set, the system will begin to perform the linear
interpolation. The coordinates of linear interpolation is within a scope of 24-digit character with symbol.
The interpolation ranges from the current position of the axis to somewhere between -8,388,607 and +8,388,607.
As shown in the figure above, within the whole interpolation scope, the position precision for the designated line is
±0.5LSB. The figure also shows the example of drive pulse output for linear interpolation. Among the set values of
endpoint, the one with the greatest absolute value comes from the major axis, which keeps outputting pulse during
the interpolation drive, while others are minor axes. Depending on the results of interpolation arithmetic,
sometimes the pulses are output, sometimes not.
Minor axis
Major axis
Position precision of linear interpolation
Minor axis
Major axis
Example of drive pulse output at the endpointX:20, Y:9